Word prediction also saves typing time. As you type, you'll see word suggestions that you can choose from. You can even add words, phrases, and shortcuts to the word prediction dictionary. See
Entering text with word prediction.

Just swipe right to access the numeric and symbol keyboard. Or swipe left to switch between languages.

The keys have secondary numbers, punctuation symbols, or other characters that you can quickly insert without having to switch to the numeric and symbol keyboard.

For example, just press and hold a key on the first row to insert a number.

Choose from a selection of smileys and insert one right from the keyboard.

Show or hide navigational arrow keys on the keyboard. If you enable the arrow keys in Settings, they'll only appear on the portrait keyboard.

And since everyone has their own typing style, you can go to Settings to calibrate the keyboard so it learns how you type.